Pros:
I've used these strings on a couple of violins that were a bit harsh on the ear to make them a bit warmer. They do help. I fix up violins from time to time, and I have spent the bit extra that these cost on a couple I've done for myself. They last very well.
They seem pretty easy on the fingers. They keep in tune very well. All in all a very good, reliable set of strings.
Cons:
None